Smartwool's Hike Full Cushion Crew socks, formerly PhD® Outdoor, use cushioning on the entire sock to help maximize warmth and protection.

These responsibly sourced, ZQ-certified Merino wool hike socks are built with our top sock tech, including Indestructawool™ technology for enhanced durability, our 4 Degree™ Elite Fit System for a dialed-in, performance-oriented fit, and our Virtually Seamless™ toe for maximum in-shoe/boot comfort.

Smartwool have updated their hike line by improving mesh zones for additional breathability, as well as creating a new ply structure that reduces pilling while enhancing hand-feel and comfort. Not to mention, Smartwool's best-feeling, best-fitting hiking socks are now made with recycled nylon—making these socks more sustainable than ever. Now that's something you can feel good in and about.

Over 25 years ago, Smartwool invented the original Merino wool performance sock - the Classic Hike.

The Classic Hike remains mostly unchanged and certainly unmatched in comfort. But today, it’s getting upgraded. And that upgrade starts with recycled nylon - creating a more sustainable (but just as comfortable) sock. They’re also made with responsibly sourced, ZQ-certified wool that was grown with a focus on ensuring environmental, social, and economic sustainability while also taking the best care of our Merino sheep.

This is a cozy, capable classic that is never going out of style.

Perform with the power and comfort of responsibly sourced, ZQ-certified Merino wool in Smartwool's Hike Light Cushion Crew socks.

Formerly known as PhD® Outdoor, Smartwool have updated their best hike socks to include more sustainable materials with the addition of recycled nylon, improved durability, updated mesh zones, and an even more perfect fit. But, don't worry. The fan-favorite sock technologies aren't going anywhere—offering you the comfort and performance you expect from Smartwool.

The crew height also adds extra coverage on the trails and light cushioning on the entire bottom of foot helps keep you comfortable when the ground isn't—helping you to hike on.

Looking for an "ordinary shirt" that can keep up with all of your adventures?

The year-round Merino Short Sleeve Tee is up to the challenge. With Smartwool's Core Spun technology, they've wrapped Merino around a nylon core for added durability while still keeping the comfort of ultra-soft, responsibly sourced Merino next to skin.

Built for consistent comfort, even when wearing a pack, this shirt is ready to explore the world on your back.

The new and improved Hike Light socks, formerly PhD® Outdoor, bring you enhanced features to maximize comfort and help you get after it at the highest level.

Smartwool have extended the durability zones to make them cover even more of the sock–offering the same comfort with even more strength. And they've updated our mesh zones to help improve breathability without sacrificing the perfect sock fit.

Combine these features with a light cushion on the entire bottom of the foot and you get a sock that provides the highest degree of comfort, fit, and durability—helping you take care of your feet on any trail.

Tees with graphics are much more fun than plain ones. And our River Van Graphic Short Sleeve tee adds to the whimsy with its outdoor-adventure/van-life appeal. It’s made with a blend of recycled polyester and responsibly sourced Merino wool, so you know it’s soft, odor-resistant, moisture-managing, and durable.

Plus, its slim fit will hug the contours of your body. And don’t forget the quick dry times the Merino/poly blend brings—even if you’ve amped up your activity, your sweat just won’t sit on your body for long. For a tee with a bit more flair (and probably a lot more comfort) than the plain old cotton ones, this tee has your back.

Take on the cold weather in the Run Cold Weather Targeted Cushion Crew Socks.

Featuring our most advanced sock technologies for enhanced durability, breathability, and comfort.

Plus, a crew height for a convenient way to add extra warmth under tights. You can go far and feel good no matter the temperature outside with these cold-weather run socks along for the ride.

Be sure to start your next run with footwear that offers as much comfort as possible.

Smartwool's Run Targeted Cushion Ankle Socks are designed with cushion on the most impact-prone areas - the ball and heel of the foot - as well as other feel-good features like mesh zones for breathability, and Virtually Seamless™ toe.

Plus, because they’re made with responsibly sourced Merino wool, they’re naturally odor-resistant and temperature-regulating. And, with Indestructawool™ technologies, they’re built to last, mile after mile.

If you thought Merino wool’s benefits - including comfort, breathability, and odor resistance - were great, you’re gonna love what else this sock brings.

With our Run Zero Cushion Ankle Socks, you also get Shred Shield™ technology to reduce wear from toes, mesh zones for enhanced breathability, a Virtually Seamless™ toe for enhanced comfort, and Indestructawool™ technology for extended durability.

When you’re ready to put in mile after mile of training runs, this sock will bring the comfort and durability goods.

Running can be grueling, but that doesn’t mean it has to be completely uncomfortable.

With our Zero Cushion Low Ankle run socks, you get the comfort and durability that will help make every mile feel good.

From the Virtually Seamless™ toe to the breathable mesh zones and from the Indestructawool™ technology to the Achilles heel tab to reduce slippage, this sock offers purpose-driven features that help you get the work done.

So if you’re ready to hit the trail, the pavement, or the treadmill for some good old-fashioned training miles, be sure your gear includes the sock that will help you stay comfortable for the long haul.